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In this video I make a drop point hunter style knife from a circular saw blade which I bought at a scrapyard.
As I started working with the steel, I realized it was too hard to shape using files so I had to anneal it, which I did by heating the steel to red heat and dunking it in sand so it would cool slower.
To drill the steel I had to use masonry drill bit because despite annealing the steal it was still too hard to drill using normal drill bits with a hand drill.
I heat treated the knife by again heating it to red heat and than I dunked in motor oil. I tempered the steel by leaving the knife close to the forge as it was cooling down and I watched the colors of the steel. Once it reached a straw color near the edge I once again dunked it in oil. Unfortunately the battery on my camera ran out of power so I wasn't able to film it.
To file the bevels I used the filing jig design by Aaron Gough of Gough Custom and you can find that video here:
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